Re: anyone ever done multicast AF_UNIX sockets?

Michael Richardson
2003-03-02T23:56:17Z

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>>>>> "jamal" == jamal <hadi@cyberus.ca> writes:
>> multicast on lo and disabled it on eth0, and a ping to 224.0.0.1 still
>> got responses from all the multicast-capable hosts on the network.

jamal> I think you may have something misconfigured.

Well, no.

First, multicast doesn't really work on loopback. I don't recall why...
One symptom of this is that one can't use the multicast transport for
User-Mode-Linux when not "online" (i.e. on the train).

Second, testing it via ping to 224.0.0.1 isn't really the right test.
You have to join a multicast group, etc...

So, I don't think that the test was done right.

] ON HUMILITY: to err is human. To moo, bovine. | firewalls [
] Michael Richardson, Sandelman Software Works, Ottawa, ON |net architect[
] mcr@sandelman.ottawa.on.ca http://www.sandelman.ottawa.on.ca/ |device driver[
] panic("Just another Debian GNU/Linux using, kernel hacking, security guy"); [
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